Gang-gang cockatoo

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Gang-gang cockatoo
Callocephalon fimbriatum male - Callum Brae.jpg
Adult male
Gang-gang female MJC01.jpg
Female
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Psittaciformes
Family: Cacatuidae
Genus: Callocephalon
Lesson, RP, 1837
Species:
C. fimbriatum
Binomial name
Callocephalon fimbriatum
(Grant, J, 1803)
Bird range gang-gang cockatoo.png
Range of C. fimbriatum

The gang-gang cockatoo (Callocephalon fimbriatum) is a parrot found in the cooler and wetter forests and woodlands of Australia, particularly alpine bushland. It is the only species placed in the genus Callocephalon. Mostly mild grey in colour with some lighter scalloping (more pronounced and buffy in females), the male has a red head and crest, while the female has a small fluffy grey crest. It ranges throughout south-eastern Australia. The gang-gang cockatoo is the faunal emblem of the Australian Capital Territory. It is easily identified by its distinctive call, which is described as resembling a creaky gate, or the sound of a cork being pulled from a wine bottle.

The name gang-gang comes from a New South Wales Aboriginal language, probably from one of the coastal languages, although possibly from Wiradjuri. It is probably an onomatopoeic name. [2]

Taxonomy

In 1803 the British Royal Navy officer James Grant included an illustration of the gang-gang cockatoo in his book describing a voyage to the colony of New South Wales in Australia. Grant coined the binomial name Psittacus fimbriatus. [3] The gang-gang cockatoo is now the only species placed in the genus Callocephalon that was introduced in 1837 by the French naturalist René Lesson. [4] [5] The type locality is the Bass River in the state of Victoria. [6] The specific epithet is from Latin fimbriata meaning "fringed". The genus name combines the Ancient Greek kallos meaning "beauty" and kephalē meaning "head". [7] The species is monotypic: no subspecies are recognised. [5]

The classification of the gang-gang cockatoo has always been controversial due to the unusual appearance and coloration of the bird, especially its sexual dichromatism. The gang-gang cockatoo was thought to be a distinctive early offshoot of the Calyptorhynchinae (black) cockatoos. [8] However, more recent molecular phylogenetic analysis places it in the Cacatuinae clade, not the Calyptorhynchinae, and having diverged from the palm cockatoo (Probosciger aterrimus). [9]

Description

The gang-gang cockatoo is 32–37 cm (13–15 in) in length with a 62–76 cm (24–30 in) wingspan, [10] and weighs 230–334 grams. [11] They are grey birds with wispy crests. The head and crest is bright red in males, but dark grey in females. The edges of feathers in underparts have edges of yellow or pink. The edges of feathers on upperarts are slightly paler grey than the rest of the feather, which makes the bird look somewhat barred. Juvenile males can be distinguished by their brighter crowns and shorter crests, but otherwise look similar to the adult female. The birds are not easily mistaken for other cockatoos, but while in flight may resemble the Galah. Gang-gangs are very social birds, but not overly noisy. [12]

Distribution and habitat

Gang-gangs are endemic to coastal regions of south-eastern Australia. They used to inhabit King Island off of Tasmania, but have become extinct there. They are an introduced species on Kangaroo Island. Gang-gangs prefer forests and woodlands in the mountains, with dense shrub understories. They migrate short distances during winter into more open habitats, but must migrate back to denser forests to breed, because they need tall trees in order to build nests. [12]

Behaviour and ecology

Breeding habits

Unlike most other cockatoos, gang-gangs nest in young, solid trees, they often nest near water. [13] The females using their strong beaks to excavate nesting cavities. Gang-gangs are monogamous. The breeding season lasts from spring to summer. The birds will lay 2-3 white eggs, the incubation period is 4 weeks and both sexes take care of the young. [13] [14]

Diet

They forage in canopies mostly feed on the flowers and buds of eucalypts, with other sources of food coming from berries, cones and wattle flowers. [15] [16] [13] [14]

Status

Loss of older, hollow trees and loss of feeding habitat across south-eastern Australia through land clearing has led to a significant reduction in the numbers of this cockatoo in recent years. As a result, the gang-gang is now listed as vulnerable in New South Wales. [17] It is protected as a vulnerable species under the Biodiversity Conservation Act 2016 (NSW). [18] This protection status as a threatened species makes it a Tier 1 criminal offence for a person or corporation to knowingly damage the bird's habitat. [19] Damage is defined to include "damage caused by removing any part of the habitat". [20] Habitat is defined to include "an area periodically or occasionally occupied by a species". [21]

In July 2021, an Australian Department of the Environment and Energy spokesperson stated the population has declined by approximately 69% in the last three generations, or 21 years and in addition to this decline, the species has suffered direct mortality and habitat loss during the 2019–20 Australian bushfire season. Between 28 and 36 per cent of the species' distribution was impacted by the fires. [22] As a result, it is set to be listed as endangered under the threatened fauna of Australia. [23]

Related Research Articles

<span class="mw-page-title-main">Cockatoo</span> Any bird in the family Cacatuidae

A cockatoo is any of the 21 species of parrots belonging to the family Cacatuidae, the only family in the superfamily Cacatuoidea. Along with the Psittacoidea and the Strigopoidea, they make up the order Psittaciformes. The family has a mainly Australasian distribution, ranging from the Philippines and the eastern Indonesian islands of Wallacea to New Guinea, the Solomon Islands and Australia.

<span class="mw-page-title-main">Cockatiel</span> Species of bird

The cockatiel, also known as the weero/weiro or quarrion, is a medium-sized parrot that is a member of its own branch of the cockatoo family endemic to Australia. They are prized as household pets and companion parrots throughout the world and are relatively easy to breed compared to other parrots. As a caged bird, cockatiels are second in popularity only to the budgerigar.

<span class="mw-page-title-main">Pink cockatoo</span> Type of cockatoo

The pink cockatoo, also known as Major Mitchell's cockatoo or Leadbeater's cockatoo, is a medium-sized cockatoo that inhabits arid and semi-arid inland areas across Australia, with the exception of the north east.

<span class="mw-page-title-main">Yellow-tailed black cockatoo</span> Species of bird native to the south-east of Australia

The yellow-tailed black cockatoo is a large cockatoo native to the south-east of Australia measuring 55–65 cm (22–26 in) in length. It has a short crest on the top of its head. Its plumage is mostly brownish black and it has prominent yellow cheek patches and a yellow tail band. The body feathers are edged with yellow giving a scalloped appearance. The adult male has a black beak and pinkish-red eye-rings, and the female has a bone-coloured beak and grey eye-rings. In flight, yellow-tailed black cockatoos flap deeply and slowly, with a peculiar heavy fluid motion. Their loud, wailing calls carry for long distances. The yellow-tailed black cockatoo is found in temperate forests and forested areas across south and central eastern Queensland to southeastern South Australia, including a very small population persisting in the Eyre Peninsula. Two subspecies are recognised, although Tasmanian and southern mainland populations of the southern subspecies xanthanotus may be distinct enough from each other to bring the total to three. Birds of subspecies funereus have longer wings and tails and darker plumage overall, while those of xanthanotus have more prominent scalloping. The subspecies whiteae is found south of Victoria to the East of South Australia and is smaller in size.

<span class="mw-page-title-main">Palm cockatoo</span> Species of bird from the South Pacific

The palm cockatoo, also known as the goliath cockatoo or great black cockatoo, is a large smoky-grey or black parrot of the cockatoo family native to New Guinea, Aru Islands, and Cape York Peninsula in Queensland, Australia. It has a very large black beak and prominent red cheek patches.

<span class="mw-page-title-main">Galah</span> Type of cockatoo

The galah, less commonly known as the pink and grey cockatoo or rose-breasted cockatoo, is an Australian species of cockatoo and the only member of the genus Eolophus. The galah is adapted to a wide variety of modified and unmodified habitats and is one of Australia's most abundant and widespread bird species. The species is endemic to mainland Australia. It was introduced to Tasmania, where it is now widespread, in the mid-19th century and much more recently to New Zealand.

<span class="mw-page-title-main">White cockatoo</span> Species of bird

The white cockatoo, also known as the umbrella cockatoo, is a medium-sized all-white cockatoo endemic to tropical rainforest on islands of Indonesia. When surprised, it extends a large and striking head crest, which has a semicircular shape. The wings and tail have a pale yellow or lemon color which is exposed when they fly. It is similar to other species of white cockatoo such as yellow-crested cockatoo, sulphur-crested cockatoo, and salmon-crested cockatoo, all of which have yellow, orange or pink crest feathers instead of white.

<span class="mw-page-title-main">Sulphur-crested cockatoo</span> Species of bird

The sulphur-crested cockatoo is a relatively large white cockatoo found in wooded habitats in Australia, New Guinea, and some of the islands of Indonesia. They can be locally very numerous, leading to them sometimes being considered pests. A highly intelligent bird, they are well known in aviculture, although they can be demanding pets.

<span class="mw-page-title-main">Solomons cockatoo</span> Species of bird

The Solomons cockatoo, also known as the Ducorps's cockatoo, Solomons corella or broad-crested corella, is a species of cockatoo endemic to the Solomon Islands archipelago. This small white cockatoo is larger than the Tanimbar corella yet smaller than the umbrella cockatoo. The species is common across most of the Solomons, absent only from Makira in the south. It inhabits lowland rainforests, secondary forests, cleared areas and gardens.

<span class="mw-page-title-main">Red-tailed black cockatoo</span> Large black cockatoo native to Australia

The red-tailed black cockatoo also known as Banksian- or Banks' black cockatoo, is a large black cockatoo native to Australia. Adult males have a characteristic pair of bright red panels on the tail that gives the species its name. It is more common in the drier parts of the continent. Five subspecies are recognised, differing chiefly in beak size. Although the more northerly subspecies are widespread, the two southern subspecies, the forest red-tailed black cockatoo and the south-eastern red-tailed black cockatoo are under threat.

<span class="mw-page-title-main">Red-capped parrot</span> Species of bird endemic to Western Australia

The red-capped parrot is a species of broad-tailed parrot native to southwestern Australia. It was described by Heinrich Kuhl in 1820, with no subspecies recognised. It has long been classified in its own genus owing to its distinctive elongated beak, though genetic analysis shows that it lies within the lineage of the Psephotellus parrots and that its closest relative is the mulga parrot. Not easily confused with other parrot species, it has a bright crimson crown, green-yellow cheeks, and a distinctive long bill. The wings, back, and long tail are dark green, and the underparts are purple-blue. The adult female is very similar though sometimes slightly duller than the male; her key distinguishing feature is a white stripe on the wing under-surface. Juveniles are predominantly green.

<span class="mw-page-title-main">Blue-billed duck</span> Species of bird

The blue-billed duck is a small Australian stiff-tailed duck, with both the male and female growing to a length of 40 cm (16 in). The male has a slate-blue bill which changes to bright-blue during the breeding season, hence the duck's common name. The male has deep chestnut plumage during breeding season, reverting to a dark grey. The female retains black plumage with brown tips all year round. The duck is endemic to Australia's temperate regions, inhabiting natural inland wetlands and also artificial wetlands, such as sewage ponds, in large numbers. It can be difficult to observe due to its cryptic nature during its breeding season through autumn and winter. The male duck exhibits a complex mating ritual. The blue-billed duck is omnivorous, with a preference for small aquatic invertebrates. BirdLife International has classified this species as Least concern. Major threats include drainage of deep permanent wetlands, or their degradation as a result of introduced fish, peripheral cattle grazing, salinization, and lowering of ground water.

<span class="mw-page-title-main">Carnaby's black cockatoo</span> Species of birds

Carnaby's black cockatoo, also known as the short-billed black cockatoo, is a large black cockatoo endemic to southwest Australia. It was described in 1948 by naturalist Ivan Carnaby. Measuring 53–58 cm (21–23 in) in length, it has a short crest on the top of its head. Its plumage is mostly greyish black, and it has prominent white cheek patches and a white tail band. The body feathers are edged with white giving a scalloped appearance. Adult males have a dark grey beak and pink eye-rings. Adult females have a bone-coloured beak, grey eye-rings and ear patches that are paler than those of the males.

<span class="mw-page-title-main">Baudin's black cockatoo</span> Species of birds

Baudin's black cockatoo, also known as Baudin's cockatoo or the long-billed black cockatoo, is a species of genus Zanda found in southwest Australia. The epithet commemorates the French explorer Nicolas Baudin. It has a short crest on the top of its head, and the plumage is mostly greyish black. It has prominent white cheek patches and a white tail band. The body feathers are edged with white giving a scalloped appearance. Adult males have a dark grey beak and pink eye-rings. Adult females have a bone coloured beak, grey eye-rings and ear patches that are paler than those of the males.

<span class="mw-page-title-main">Western corella</span> Species of bird

The western corella also known as the western long-billed corella, is a species of white cockatoo endemic to south-western Australia.

<i>Calyptorhynchus</i> Genus of cockatoos

Described by French naturalist Anselme Gaëtan Desmarest in 1826, the genus Calyptorhynchus has two species of cockatoos. They are all mostly black in colour, and the taxa may be differentiated partly by size and partly by small areas of red, grey, and yellow plumage, especially in the tail feathers. Studies based on the mitochondrial DNA 12S gene fragment suggested that other sexually dichromatic species, the gang-gang cockatoo and the cockatiel may be the closest living relatives of Calyptorhynchus. However, subsequent studies, including more genes confirm the morphological taxonomy with the gang-gang cockatoo most closely related to the galah, within the white cockatoo group, and with the cockatiel as a third distinct subfamily of cockatoos.

<span class="mw-page-title-main">Ground parrot</span> Species of bird

The ground parrot is a parrot endemic to Australia. It is one of only four ground-dwelling parrots in the world, the others being the closely related night parrot, the Antipodes parakeet, and the flightless kākāpō from New Zealand.

<span class="mw-page-title-main">Painted honeyeater</span> Species of bird

The painted honeyeater is a species of honeyeater in a monotypic genus.

<span class="mw-page-title-main">Parrot</span> Order of birds

Parrots (Psittaciformes), also known as psittacines, are birds with a strong curved beak, upright stance, and clawed feet. They are conformed by four families that contain roughly 410 species in 101 genera, found mostly in tropical and subtropical regions. The four families are the Psittaculidae, Psittacidae, Cacatuoidea (cockatoos), and Strigopidae. One-third of all parrot species are threatened by extinction, with a higher aggregate extinction risk than any other comparable bird group. Parrots have a generally pantropical distribution with several species inhabiting temperate regions as well. The greatest diversity of parrots is in South America and Australasia.

References

  1. BirdLife International (2022). "Callocephalon fimbriatum". IUCN Red List of Threatened Species . 2022: e.T22684755A210869419. Retrieved 22 July 2022.
  2. Gray, Jeannie; Fraser, Ian (2013). Australian Bird Names: A Complete Guide. Collingwood, VIC, Australia: CSIRO Publishing. p. 127. ISBN   9780643104709.
  3. Grant, James (1803). The narrative of a voyage of discovery, performed in His Majesty's vessel the Lady Nelson, of sixty tons burthen with sliding keels, in the years 1800, 1801, and 1802, to New South Wales. London: T. Egerton. Plate opposite page 135.
  4. Lesson, René (1837). "Histoire Naturelle". In Bougainville, Hyacinthe de (ed.). Journal de la navigation autour du globe, de la frégate La Thétis et de la corvette L'Espérance, pendant les années 1824, 1825 et 1826 : publié par ordre du roi sous les auspices du Département de la marine. Vol. 2. Paris: A. Bertrand. pp. 299–351 [311–318].
  5. 1 2 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2021). "Parrots, cockatoos". IOC World Bird List Version 11.1. International Ornithologists' Union. Retrieved 5 March 2021.
  6. Peters, James Lee, ed. (1937). Check-List of Birds of the World. Vol. 3. Cambridge, Massachusetts: Harvard University Press. p. 173.
  7. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 85, 159. ISBN   978-1-4081-2501-4.
  8. Brown, D.M.; Toft, C.A. (1999). "Molecular systematics and biogeography of the cockatoos (Psittaciformes: Cacatuidae)". Auk . 116 (1): 141–157. doi:10.2307/4089461. JSTOR   4089461.
  9. White, N.E. (2011). "The evolutionary history of cockatoos (Aves: Psittaciformes: Cacatuidae)". Molecular Phylogenetics and Evolution. 59 (3): 615–622. doi:10.1016/j.ympev.2011.03.011.
  10. "Gang-gang Cockatoo – profile". www.environment.nsw.gov.au.
  11. "Conservation Advice for Callocephalon fimbriatum (Gang-gang Cockatoo)" (PDF). p. 3. Retrieved 17 August 2023.
  12. 1 2 "Gang-gang Cockatoo | BIRDS in BACKYARDS". www.birdsinbackyards.net. Retrieved 2019-06-14.
  13. 1 2 3 "Gang-gang Cockatoo" (PDF). NSW Gov. December 2008.
  14. 1 2 "Gang-gang Cockatoo". The Australian Museum. Retrieved 2024-04-03.
  15. "Get to know the gang-gang cockatoo". ANU College of Science. Retrieved 2024-04-03.
  16. Mulvaney, Michael, and Isobel Booksmythe. "Gang-gang Cockatoo diet as assessed by camera images and written records." https://absa.asn.au/wp-content/uploads/2023/04/4_V47_Pg8-15_GangGangCockatoo_V2.pdf
  17. Hughes, Lesley (2005). "Gang-gang Cockatoo – vulnerable species listing". NSW Scientific Committee – final determination. New South Wales Office of Environment & Heritage. Retrieved 21 November 2011.
  18. Biodiversity Conservation Act 2016 (NSW), Schedule 1: Part 3 Vulnerable species
  19. Biodiversity Conservation Act 2016 (NSW), s.2.4
  20. Biodiversity Conservation Act 2016 (NSW), s.1.6
  21. Biodiversity Conservation Act 2016 (NSW), s.1.6
  22. Brown, Andrew (24 July 2021). "Gang-gang cockatoo set to be listed on threatened species list as endangered". The Canberra Times. Australian Community Media. Retrieved 2 August 2021.
  23. "Gang-gang cockatoo to become threatened species after large drop in bird numbers". The Guardian. 2022-03-01. Retrieved 2022-03-30.